Good afternoon and welcome thanks for joining us here on r. T. International. Well start with an update on the latest global coronavirus figures the total number of infections that is now above 4200000 284000 lives have been lost more than 1500000 people have recovered. France is taking its 1st tentative steps back to normality today its a week lockdown these being eased back although some restrictions will remain in place for instance masks are mandatory on public transport while some see the overall move as being positive for this fear it could lead to a 2nd spike in infections or do risky has details. From today thats monday many shops will be able to reopen schools will start to reopen public transport will be running more efficiently than it has over the last 8 weeks people hoping to get the taste of freedom for the last 8 weeks every time theyve left the house of had to have a personal permission slip and act to say exactly why theyre leaving the house for a select narrow set of
And the effects of city lights on nature. Lets start at the beginning with how we see light. A light enters our eye it hits the retina. And is received by photo receptor cells the socalled rod cells respond to light and dark the cones are responsible for color vision but we only see the light that actually enters our eyes if you are in zambia wanted to know more. Now theres light travel. During a thunderstorm or you see the lightning straight away but we hear the thunder with a glow. Thats because sound waves move slowly or as light travels super fast through. A 100000 kilometers per 2nd. It maintains that speed in space where theres a vacuum and it moves only slightly slower through the earths atmosphere but other media slow down for example water in which it travels at a mere 225000 kilometers a 2nd. Light travels like ripples spreading on the surface of a liquid in all directions simultaneously. And in Straight Lines which is why we talk of light rays sometimes its even possible for
Overcomes space and time. Alike based internet. And the effects of city lights on nature. But lets start at the beginning with how we see light. When light enters our eye it hits the retina. And is received by photo receptor cells the socalled rot cells respond to light and dark the cones are responsible for color vision but we only see the light that actually and his our eyes if he were in zambia wanted to know more. Light travel. During a thunderstorm or a soup. Lightning straight away but we hear the thunder with a delay. Thats because sound waves move slowly or as light travels super fast at 300000 kilometers per 2nd. It maintains that speed in space where theres a vacuum and it moves only slightly slower through the earths atmosphere but other media slow it down for example water in which it travels at a mere 225000 kilometers a 2nd. Light travels like ripples spreading on the surface of a liquid in all directions simultaneously. And in Straight Lines which is why we talk of light
Overcome space and time. And like based internet. The effects of city lights on nature. That lets start at the beginning with how we see light. When light enters our eye it hits the retina. And is received by photo receptor cells the socalled rot cells respond to light and dark the cones are responsible for color vision but we only see the light that actually enters our eyes if they were in zambia wanted to know more all. Those light travel. During a thunderstorm or you see. The lightning straight away but we hear the thunder with the delay. Thats because the sound waves move slowly or as light travels super fast at 300000 kilometers per 2nd. It maintains that speed in space where theres a vacuum and it moves only slightly slower through the earths atmosphere but other media slow down for example water in which it travels at a mere 225000 kilometers a 2nd. Light travels like ripples spreading on the surface of a liquid in all directions simultaneously. And in Straight Lines which is wh
Overcome space and time. And like based internet. And the effects of city lights on nature. But lets start at the beginning with how we see light. When light enters our eye it hits the retina. And is received by photo receptor cells the socalled rot cells respond to light and dark the cones are responsible for color vision but we only see the light that actually enters our eyes if you are in zambia wanted to know more. Light travel. During a thunderstorm or you see them. Lightning straight away but we hear the thunder with a delay. Thats because sound waves move slowly or as light travels super fast at 300000 kilometers per 2nd. It maintains that speed in space where theres a vacuum and it moves only slightly slower through the earths atmosphere but other media slow down for example water in which it travels at a mere 225000 kilometers a 2nd. Light travels like ripples spreading on the surface of a liquid in all directions simultaneously. And in Straight Lines which is why we talk of l